Stats
posted by Sarah .
The following data represent the number of live births in the United States in 2007 for women 15 to 49 years old.
Age Live Births
15  19 445,045
20  24 1,082,837
25  29 1,208,405
30  34 962,179
35  39 499,916
40  44 105,071
45  49 7,349
Find the following:
1. What is the class width?
2. What is the sample size (n)?
3. What is the mean of the ages?
4. What is the standard deviation of the ages?
5. Construct a relative frequency distribution.

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